Pay in 4 interest-free payments of $3.74 Learn more
Ships within 48 hours · Estimated delivery Oct 2 - Oct 7
For pools that need maximum clarity
Tool-Free Installation – Replaces original clips quickly with no special tools required
Using complementary products helps maintain optimal spa water chemistry and performance
Powerful Oxidizing Action – Destroys chloramines
Compact size that fits easily in service trucks
Insta-TEST PRO Phosphate Test Strips High Range Valve For pools that need maximumInsta TEST PRO Phosphate High Range Test Strips are designed to measure elevated phosphate levels in pool and spa water where algae pressure, recurring cloudiness, or chlorine demand issues are present. These professional grade strips provide fast, reliable readings at higher concentrations commonly found in problem pools or pools that have not been treated for phosphates. Phosphates act as a primary nutrient source for algae. When levels rise
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